128743425

素因数分解:

$3^4\times 5^2\times {\mathrm{63577}}^1$

素因数の和:63599

約数の個数: 30

約数和(自身を含む): 238481078

約数和(自身を除く): 109737653

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 63577, 190731, 317885, 572193, 953655, 1589425, 1716579, 2860965, 4768275, 5149737, 8582895, 14304825, 25748685, 42914475, 128743425]

約数ペア:

[(1, 128743425), (3, 42914475), (5, 25748685), (9, 14304825), (15, 8582895), (25, 5149737), (27, 4768275), (45, 2860965), (75, 1716579), (81, 1589425), (135, 953655), (225, 572193), (405, 317885), (675, 190731), (2025, 63577)]